Parent taxon: Aves according to G. Mayr and A. C. Kitchener 2022
See also Carroll 1988, del Hoyo et al. 2014, Gadow 1898, Guthrie 1992, Hay 1930, Jaekel 1911, Livezey and Zusi 2007, Mayr 2005, Slack et al. 2006, Wetmore 1940 and Wetmore 1960
Sister taxa: Accipitriformes, Alaripeda, Archaeornithipus, Archornithes, Aucornis, Avimimiformes, Avipedidae, Barrosopus, Bucerotiformes, Chaoyangornithidae, Charadriiformes, Climacarthrus, Dolichopterus, Dromiceiidae, Eoaves, Eociconia, Eopteryx, Eucavitaves, Eupterornis remensis, Eurhipidurae, Euryonotus, Fontinalis, Gansuiformes, Gobioolithidae, Gruipeda, Gyeongsangornipes, Ibidopodia, Ignotornidae, Jeholornis, Jindongornipodidae, Jixiangornis, Koreanaornipodidae, Kuszholiidae, Liaoxiornithidae, Limiavipedidae, Loncornis, Longipennes, Manu, Metornithes, Micropodiformes, Minerva, Mirandornithes, Moguiornipes, Musophagiformes, Mystiornithiformes, Neornithes, Odontoglossae, Odontopterygiformes, Odontornithes, Omnivoropterygiformes, Onychopteryx, Pachycorioolithidae, Palaeoaves, Palaeolestes, Palaeopsittacus, Paludicolae, Pancharadriiformes, Pangalliformes, Panmirandornithes, Pansphenisciformes, Parvoolithus, Patagonichnornis, Paxavipedidae, Phaethontiformes, Platanavis, Plectophora, Praeornithes, Proherodius, Proherodius oweni, Proornis, Protoaviformes, Protopelargus, Protornis, Psittacopasseres, Psittacopedidae, Pygostylia, Qianshanornithidae, Querandiornis, Riacama, Sauriurae, Shandongornipodidae, Shenzhouraptor, Smiliornis, Tantalatos, Tantaleus, Tatarornipes, Telluraves, Telmatoformes, Teracus, Tricorynopus brinkmani, Tridentigerpes, Tshulia, Uhangrichnus, Yacoraitichnus, Yalavis
Subtaxa: Accipitres Cathartae Cathartoidea Falcones Falconidae Falconoidae Horusornithidae Masillaraptoridae Teratornithi Vulturoidae